SQL Server: Why Physical Database Design Matters

by Kimberly L. Tripp

This course shows how you to choose the right data types applicable to SQL Server developers and anyone who is responsible for designing and creating SQL Server tables and indexes, from SQL Server 2005 onward

What you'll learn

This course is about how your database’s physical design either takes advantage of or is hindered by the way that the SQL Server platform works; knowing this can give you better long-term scalability, availability, and performance. Choosing the right data types when you're designing your columns, tables, and indexes is really critical. Using the wrong data type can cause more space to be required, affecting data density in memory, database and backup size, transaction log efficiency, and more. It's even more important when you're choosing your clustering keys, as the wrong choice there can cause nonclustered index sizes to balloon dramatically. It can even affect the performance of queries, when incompatible data types are used in comparisons and cause very costly operations to take place. This course will show you how to make the right choices and avoid all of these problems. It starts by explaining the various data structures that are used to store columns and rows, and how they can be affected by data type choice. Then it shows how data type choice factors into clustered and nonclustered index key choice. Finally it describes the implicit conversion and probe residual problems that can occur from mismatched data types used in queries. Packed with a wealth of information and practical, easy-to-follow demonstrations, this course will show you how to make the RIGHT choices to make sure you avoid all these common problems. The course is applicable for all SQL Server versions from SQL Server 2005 onward, and for SQL Server developers and anyone responsible for designing and creating SQL Server tables and indexes, with any level of experience.

Table of contents

About the author

Kimberly L. Tripp is a SQL Server MVP and a Microsoft Regional Director and has worked with computers since 1985. Since 1995, Kimberly has worked as a Speaker, Writer, Trainer and Consultant for her own company SQLskills.com which she now runs with her husband – Paul Randal. Working together Kimberly and Paul enjoy the ability to work on different types of projects – from Immersion Events to consulting to speaking at conferences to writing articles and books. Kimberly has presented lectures and ... more

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